长距离跨海高程传递测量方法研究与工程实践  

Long-Distance Cross-Sea Elevation Transmission Method and Engineering Practice

作　　者：卢群[1,2] 邱卫宁[2] 范玉磊 杨海峰[4] 

机构地区：[1]61175部队 [2]武汉大学测绘学院 [3]61234部队 [4]武警湖北省总队后勤部

出　　处：《测绘地理信息》2016年第1期70-73,共4页Journal of Geomatics

基　　金：国家自然科学基金资助项目(41174010;41374011)~~

摘　　要：介绍了长距离跨海高程传递测量的基本原理、方法,测距三角高程精度分析以及某处长距离跨海高程传递测量工程实践。结果表明:选择合理的跨海高程传递场地,一天内不同时间段的严格同步对向观测可有效消除大气折光差的影响。只要观测条件合适,观测方法恰当,7km以内的长距离跨海高程传递测量可以接近二等水准测量精度。This paper takes an introduce to the basic prin- ciple and method of long-distance cross-sea elevation transmission and presents a precision analysis of trigono- metric leveling with engineering practice. The results show that in reasonable cross-sea elevation transmission field, strict synchronization subtend observation can be u- tilized to eliminate the atmospheric refraction error effec- tively within different period of a day. With proper meth- od and under appropriate condition, the precision of sec- ondorder leveling can be achieved for long-distance cross- sea elevation transmission within 7 km.

关 键 词：测距三角高程 GPS基线测量 长距离跨海高程传递 精度分析 

分 类 号：P228[天文地球—大地测量学与测量工程]